diff --git a/developer/bin/find-appcast b/developer/bin/find-appcast
index b42c99774f..0cc5a106c1 100755
--- a/developer/bin/find-appcast
+++ b/developer/bin/find-appcast
@@ -26,7 +26,10 @@ def url_exist?(url)
   uri = URI.parse(url)
   response = Net::HTTP.get_response(uri)
   response.is_a? Net::HTTPSuccess
-rescue URI::InvalidURIError, Errno::ECONNREFUSED, SocketError
+rescue URI::InvalidURIError,
+       Errno::ECONNREFUSED,
+       SocketError,
+       OpenSSL::SSL::SSLError
   false
 end